STUDY OF TEMPERATURE DISTRIBUTION IN THE INSULATED MATERIALS DURING THE PROCESS OF INTERNAL HEATING

摘要：

Vacuum-pumping is one of the important procedures for the technical process of manufacturing cryogenic cylinders, and a so-called “internal heating method is widely employed during the vacuum-pumping process. In this study, the distribution of temperature in the insulating materials during the process of vacuum-pumping is experimentally investigated, using thermocouples fixed in the materials. Temperature distributions are tested under the static and dynamic conditions, respectively. It is found that the temperature gradient under the dynamic condition is much larger than that under the static condition, and can become steady more rapidly. This conclusion indicates that inner heating is more effective for vacuum-pumping.

作者: Yang LI Rongshun WANG Wei WEI

作者单位: Institute of Refrigeration and Cryogenic Engineering, Shanghai Jiaotong University,800, Dongchuan road, Shanghai,200240, PR China

会议类型: 国际会议

会议名称: The 22nd International Congress of Refrigeration(第22届国际制冷大会)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-21（万方平台首次上网日期，不代表论文的发表时间）